adj.拱形的；圆顶的
动词vault的过去式和过去分词形式.
The stylish grand ballroom offers 577 sq feet of space and vaulted ceilings. 大宴会厅的面积达577平方米，它拥有拱形天花板，环境豪华。
A vaulted grotto with a skylight shelters the ruins of cliff dwellings. 一个带天窗的圆顶岩洞，保护着悬崖洞人的遗址。
